水中呋码唑酮的固定相光催化氧化

以高压汞灯为光源、负载在海砂上的ＴｉＯ２为催化剂，采用敞口固定床型光催化反应器对水中难降解的呋码唑酮（ＦＴＤ）进行了固定相光催化氧化实验。结果表明，反应速率可用Ｌａｎｇｍｕｉｒ－Ｈｉｎｓｈｅｌｗｏｏｄ方程描述，与光分解相比，光催化氧化的突出优点是矿化程度高，相同光辐射条件下反应１００ｍｉｎ，０．１０ｍｍｏｌ／Ｌ的ＦＴＤ水溶液经光催化氧化后ＴＯＣ的去除率为８９．１％，而经光分解后ＴＯＣ的去除率仅为２     

SSU—12型程控电话交换机自动计费系统的设计

给出了ＳＳＵ－１２型程控电话交换机自动计费系统的软，硬件设计方法，软件系统采用ＴＵＲＢＯ ＣＶ２．０和ＦＯＸＢＡＳＥ２．１混合编程技术，具有数据采休，数据转换和数据处理等功能。     

PROPHYLAXIS OF INTERMITTENT DIAZEPAM IN CHILDREN WITH FEBRILE CONVULSIONS（FC）

ＰＲＯＰＨＹＬＡＸＩＳＯＦＩＮＴＥＲＭＩＴＴＥＮＴＤＩＡＺＥＰＡＭＩＮＣＨＩＬＤＲＥＮＷＩＴＨＦＥＢＲＩＬＥＣＯＮＶＵＬＳＩＯＮＳ（ＦＣ）（ＤｅｐａｒｔｍｅｎｔｏｆＰｅｄｉａｔｒｉｃｓ，ＳｅｃｏｎｄＡｆｆｉｌｉａｔｅｄＨｏｓｐｉｔａｌ，Ｘｉ＇ａｎ７１...     

DYNAMIC CHANGES IN Giα2 LEVELS IN THE RAT HEART ASSOCIATED WITH IMPAIRED CARDIAC FUNCTION FOLLOWING ACUTE MYOCARDIAL INFA RCT

ＤＹＮＡＭＩＣＣＨＡＮＧＥＳＩＮＧｉα２ＬＥＶＥＬＳＩＮＴＨＥＲＡＴＨＥＡＲＴＡＳＳＯＣＩＡＴＥＤＷＩＴＨＩＭＰＡＩＲＥＤＣＡＲＤＩＡＣＦＵＮＣＴＩＯＮＦＯＬＬＯＷＩＮＧＡＣＵＴＥＭＹＯＣＡＲＤＩＡＬＩＮＦＡＲＣＴＩＯＮＳｋｉＢｉｎｇ；Ｊ．Ｅ．Ｈｅａ...     

NOVEL METHOD FOR TEXTURE DISCRIMINATION USING WAVELETS

ＮＯＶＥＬＭＥＴＨＯＤＦＯＲＴＥＸＴＵＲＥＤＩＳＣＲＩＭＩＮＡＴＩＯＮＵＳＩＮＧＷＡＶＥＬＥＴＳ＊ＬｉｕＪｉａｎｆｅｎｇ（刘建峰）ＱｉＦｅｉｈｕ（戚飞虎）（Ｄｅｐｔ．ｏｆＣｏｍｐｕｔｅｒＳｃｉｅｎｃｅ，ＳｈａｎｇｈａｉＪｉａｏｔｏｎｇＵｎｉｖ．）Ｊｏ...     

SCREENING A CDNA LIBRARY FOR PHOSPHOLIPASE A2 CLONES USING BLOOD AGAR PLATES

ＳＣＲＥＥＮＩＮＧＡＣＤＮＡＬＩＢＲＡＲＹＦＯＲＰＨＯＳＰＨＯＬＩＰＡＳＥＡ２ＣＬＯＮＥＳＵＳＩＮＧＢＬＯＯＤＡＧＡＲＰＬＡＴＥＳＣｈｅｎＴａｉｐｉｎ；．Ｊ．Ｍｅｚａ，Ｃ．Ｖｉｄａｌ，Ｅ．Ｒａｉｌ（ＤｅｐａｒｔｍｅｎｔｏｆＢｉｏｌｏｇｉｃａｌＳｃｉｅ...     

MULTIPLE ENHANCER ELEMENTS MEDIATE THE INDUCTION OF C-FOS BY ANGIOTENSIN Ⅱ

ＭＵＬＴＩＰＬＥＥＮＨＡＮＣＥＲＥＬＥＭＥＮＴＳＭＥＤＩＡＴＥＴＨＥＩＮＤＵＣＴＩＯＮＯＦＣ－ＦＯＳＢＹＡＮＧＩＯＴＥＮＳＩＮⅡＩＮＶＡＳＣＵＬＡＲＳＭＯＯＴＨＭＵＳＣＬＥＣＥＬＬＳＣｈｅｎＹａｎｑｕｎ；ＢａｒｔｅｋＲｙｄｚｅｗｓｋｉ，ＡｌｌｅｎＪ．...     

MULTIPLE TRANS-ACTING FACTORS MEDIATE THE INDUCTION OF C-FOS IN VASCULAR SMO

ＭＵＬＴＩＰＬＥＴＲＡＮＳ－ＡＣＴＩＮＧＦＡＣＴＯＲＳＭＥＤＩＡＴＥＴＨＥＩＮＤＵＣＴＩＯＮＯＦＣ－ＦＯＳＩＮＶＡＳＣＵＬＡＲＳＭＯＯＴＨＭＵＳＣＬＥＣＥＬＬＳＣｈｅｎＹａｎｑｕｎ；ＢａｒｔｅｋＲｙｄｚｅｗｓｋｉ，ＡｌｌｅｎＪ．Ｎａｆｔｉｌａｎ（Ｄｅ...     

REGULATION OF THE INTERFERON－INDUCIBLE PROTEIN KINASEPKR AND2＇5＇ OLIGOADENYLATE SYNTHETASE BY A CATALYTICALLY INACTIVE PKR M

ＲＥＧＵＬＡＴＩＯＮＯＦＴＨＥＩＮＴＥＲＦＥＲＯＮ－ＩＮＤＵＣＩＢＬＥＰＲＯＴＥＩＮＫＩＮＡＳＥＰＫＲＡＮＤ２＇５＇ＯＬＩＧＯＡＤＥＮＹＬＡＴＥＳＹＮＴＨＥＴＡＳＥＢＹＡＣＡＴＡＬＹＴＩＣＡＬＬＹＩＮＡＣＴＩＶＥＰＫＲ　ＭＵＴＡＮＴＴＨＲＯＵＧＨ　Ｃ...     

EFFECT OF CO－SUPPLEMENTATION OF VITAMIN E AND SELENIUM ON NORMAL AND MALIGNANT CELL PROLIFERATION

ＥＦＦＥＣＴＯＦＣＯ－ＳＵＰＰＬＥＭＥＮＴＡＴＩＯＮＯＦＶＩＴＡＭＩＮＥＡＮＤＳＥＬＥＮＩＵＭＯＮＮＯＲＭＡＬＡＮＤＭＡＬＩＧＮＡＮＴＣＥＬＬＰＲＯＬＩＦＥＲＡＴＩＯＮＨｕＷｅｎｌｉａｎｇ；ＬｉｕＬｉｈｕａ；ＡｎｔｈｏｎｙＴＤｉｐｌｏｃｋ．（Ｄｅｐａ...     

聚乙烯醇负载Keggin结构杂多酸光催化降解水中苯酚

采用化学自组装法制备聚乙烯醇负载Keggin结构的H3PW12O40和H4SiW12O40复合物膜并对水中苯酚进行光催化降解研究．对复合物的结构及光色性质进行表征，讨论了复合物膜的组成、用量、光照时间与TOC及苯酚去除率之间的关系．实验结果表明：以PW12／SiW12／聚乙烯醇制成的复合物膜，其组成为1：2(质量比)、用量为5g/L，光照2h，10mg／L水中苯酚去除率可达到50％左右，TOC去除率可达到30％-40％．     

光催化活性艳橙脱色降解

以253.7 nm紫外灯(20 W)、氙灯(500 W)和太阳光为光源,研究了多金属氧酸盐(磷钨酸,硅钨酸)及二氧化钛对模拟染料废水活性艳橙(KGN)溶液的光催化脱色降解性.结果表明,以磷钨酸为光催化剂时,KGN溶液的初始pH、催化剂投加量及光源对光解效果均有影响.在平均光照强度为98000 lx的晴天,KGN溶液(100 mL)的初始浓度为10 mg/L,溶液初始pH为2.00,磷钨酸投量为0.6 g/L时,光照1 h,其色度去除率达96.67%,TOC去除率79.22%、COD去除率85.98%,BOD5/COD为0.3,达到可生化降解的程度.研究表明H3PW12O40、H4S iW12O40、TiO2三种催化剂光催化降解KGN能力不同,在紫外光和日光下,其降解活性艳橙的能力依次为:TiO2>H3PW12O40 H4S iW12O40.H3PW12O40虽略逊于TiO2,但光照相同时间后出水也已达到可生物降解的程度.     

Ag／BaTiO3的制备及光催化性能

采用光催化还原法、浸渍法和水热法分别制备了Ag／BaTiO3催化剂．通过X-射线衍射（XRD）、扫描电子显微镜（SEM）、紫外-可见吸收光谱（UV—vis）等手段对改性后的催化剂进行表征,考察了掺杂Ag的不同制备方法、催化剂的载Ag量对催化剂光催化活性的影响．实验结果表明,改性后的BaTiO3对亚甲基蓝染料溶液的光催化降解能力有明显提高,采用光催化还原法制备的Ag／BaTiO3催化剂催化活性最高,载Ag量为1．0％的Ag／BaTiO3对亚甲基蓝的降解效果最好,紫外光照射4h后降解率为95％．     

Ag/BaTiO3的制备及光催化性能

采用光催化还原法、浸渍法和水热法分别制备了Ag/BaTiO3催化剂.通过X-射线衍射(XRD)、扫描电子显微镜(SEM)、紫外-可见吸收光谱(UV-vis)等手段对改性后的催化剂进行表征,考察了掺杂Ag的不同制备方法、催化剂的载Ag量对催化剂光催化活性的影响.实验结果表明,改性后的BaTiO3对亚甲基蓝染料溶液的光催化降解能力有明显提高,采用光催化还原法制备的Ag/BaTiO3催化剂催化活性最高,载Ag量为1.0％的Ag/BaTiO3对亚甲基蓝的降解效果最好,紫外光照射4h后降解率为95％.     

两种钛基涂层电极电催化氧化酸性品红研究

采用热氧化法制备了Ti／SnO2和Ti／SnO2-Sb2O3电极,以酸性品红为研究对象,对比了两种电极材料的电催化效果。结果表明：相对于Ti／SnO2阳极,Ti／SnO2-Sb2O3阳极对酸性品红有着更好的去除效率和降解速率。两种电极的电催化氧化过程均符合一级动力学模型。酸性品红在Ti／SnO2—Sb2O3阳极上电催化氧化降解过程的紫外-可见光谱图表明在电流密度75mA·cm^-2,电解质N恕SO4浓度12g-L^-1的条件下,处理100mg·L^-1的酸性品红模拟废水,60min内其在λmax=545nm的特征吸收峰消失,酸性品红基本去除,但同时生成了部分小分子中间产物。     

Degradation of selected indoor air pollutants: Comparison study of photocatalytic,ozone-assisted photocatalytic and amine adsorption processes

Indoor air pollutants impact human health, comfort and productivity. The method of photocatalysis has been applied mainly in flow reactors and little information is available on indoor air pollutant removal in airtight reactors. In the paper, experiments were carried out to remove formaldehyde (HCHO), ammonia (NH₃) and volatile organic compounds (VOCs) in the airtight and ventilated chambers. Results demonstrated that 90.4% of HCHO, 92.3% of NH₃ and 57.9% of VOCs were removed in the amine adsorption process, while 67.5% (hereinbefore, these are the mass fraction) of HCHO, 60.0% of NH₃, and 61.2% of VOCs were removed in the photocatalytic process. However, ozone-assisted photocatalytic process showed great potential to degrade indoor air pollutants in the ventilated chamber. Factors and mechanisms of the photocatalytic degradation of HCHO, NH₃ and VOCs were also discussed.     

固体超强酸光催化降解大红染料的研究

通过自制的固体超强酸催化剂对大红染料废水进行光催化降解研究,考察了反应条件、催化剂投加量、pH值、紫外灯照射时间及染料初始浓度对光催化降解过程的影响,确定了最佳实验条件:催化剂投加量为2 g/L,pH值为6,紫外灯照射时间为150 min,大红染料浓度为100 mg/L.在此基础上添加助催化剂和H2O2,降解率进一步提高.     

原水有机物分子量分布及去除特性研究——基于北方某水厂实测数据

试验利用超滤膜法分析了黄河中下游原水总有机物（total organic carbon,TOC）中的溶解性有机物（dissolved organic car-bon,DOC）的分子量分布,以及原水经常规工艺处理后各工艺段出水DOC的MW分布。并以此分析该水厂对有机物的去除特性。结果表明：原水中DOC以小分子量有机物为主（〈0.5 k Dalton的有机物占约占60%）;从DOC和UV254来看,常规工艺对有机物的整体去除率不高,分别为20%和38%,其中有机物去除主要以混凝沉淀为主;水厂常规工艺对分子量〈1 k Dalton有机物不能有效去除,甚至有所增加;比紫外吸收值表明,该水厂常规工艺不能有效降低消毒副产物生成风险,有必要增加深度处理工艺。     

氧化锰及炭/氧化锰复合材料的电化学电容性能

以Mn（Ac）2为锰源,以K2S2O8为氧化剂,采用液相氧化法制备了氧化锰材料和炭/氧化锰复合材料.采用循环伏安、交流阻抗和恒流充放电方法对两种电极材料的电化学电容性能进了表征.结果表明：由于炭的担载,复合材料的电化学电容性能优于纯氧化锰.氧化锰对称型电容器的比电容要远远低于炭/氧化锰的比电容,后者是前者的7~12倍.而氧化锰对称型电容器的内阻要远远高于炭/氧化锰的内阻,前者是后者的4.4~4.5倍.     

Analysis and determination of diterpenoids in unprocessed and processed Euphorbia lathyris seeds by HPLC-ESI-MS

Euphorbia lathyris （Caper spurge） is a toxic and potent Chinese materia medica （T/PCMM）. This study sought a method for identifying five diterpenoids （Euphorbia factors LI-L3, L7a, and Ls） with the spectra of UV and mass, quantifying three diterpenoids L1, L2, and L8 in crude extracts of unprocessed and processed E. lathyris seeds by liquid chromatography/ electrospray ionization mass spectrometry （LC-ESI-MS）. The analysis was achieved on an Agilent Eclipse XDB-C18 column （4.6 mm× 150mm i.d., 5 μm） with an isocratic elution with a mobile phase consisting of water and acetonitrile at a flow rate of 0.25 mL/min at column temperature of 30 ℃ and UV detection was set at 272 nm. An ESI source was used with a positive ionization mode. The calibration curve was linear in the ranges of 9.9-79 μg/mL for Euphorbia factor Lb 3.8-30.5μg/mL for Euphorbia factor L2, and 1.0-20.6 μg/mL for Euphorbia factor LB. The average recoveries （n=6） of three diterpenoids were 98.39%, 91.10% and 96.94%, respectively, with RSD of 2.5%, 2.4% and 2.1%, respectively. The contents of the three diterpenoids in processed E. lathyris seeds were 3.435, 1.367 and 0.286 mg/g, respectively, which decreased more sharply than those in unprocessed E. lathyris seeds which were 4.915, 1.944 and 0.425 mg/g, respectively. The method is simple, accurate, reliable and reproducible, and it can be applied to control the quality of unprocessed and processed E. lathyris seeds.